即中途测试，是指油井在钻井过程中，对有。
DST (drill Stem test), a fast test for show of oil and gas while drilling.
讨论了勘探部门在钻井过程中如何利用旧井资源的问题。
The question of how to use old well resource in drilling well for exploration department is discussed.
鉃泥浆泵是在钻井过程中，向钻井输送泥浆或水等介质的机械。
Mud din the drilling process, the drilling mud or water transport machinery such as washing fluid.
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